Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
040042goodexcellent111excellent
030063lightly pollutedexcellent111excellent
020054goodexcellent111excellent
010049goodexcellent111excellent
000069lightly pollutedexcellent121excellent
230073lightly pollutedexcellent131excellent
220082lightly pollutedexcellent131excellent
210073lightly pollutedexcellent121excellent
200088lightly pollutedexcellent131excellent
190098lightly pollutedexcellent151excellent
180084lightly pollutedexcellent131excellent
170060goodexcellent91excellent
160049goodexcellent71excellent
150048goodexcellent81excellent
140042goodexcellent61excellent
130056goodexcellent71excellent
120063lightly pollutedexcellent81excellent
110050goodexcellent81excellent
100060goodexcellent101excellent
090072lightly pollutedexcellent111excellent
080075lightly pollutedexcellent111excellent
070078lightly pollutedexcellent121excellent
060082lightly pollutedexcellent141excellent
050080lightly pollutedexcellent141excellent